Title:
複数の液圧ポンプの出力および/またはトルク調整装置
Document Type and Number:
Japanese Patent JP4082523
Kind Code:
B2
Abstract:
A power- and moment-regulating system for at least two adjustable hydraulic pumps (10, 11). A hydraulic servo control apparatus (22, 23) continuously adjusts delivery as a function of pressure in a delivery pressure line (16, 17) and pressures in control lines (20, 21). Each servo control apparatus (22, 23) is provided with a moment valve (42, 43) having a valve piston (62) which moves in a valve sleeve (61) forming a valve seat and whose closure force is determined by a measuring spring (46, 47) which is connected to pump actuator (37, 38) and is preloaded depending upon the set delivery rate. The pressure in control line (20, 21) or pressure in control lines of the other hydraulic pump(s) (11, 10) act both on the valve piston (62) and on valve screen (61) of moment valve (42, 43) associated with the given hydraulic pump (10, 11).
Inventors:
Boitler Gerhard
Meier Hermann
Meier Hermann
Application Number:
JP51995998A
Publication Date:
April 30, 2008
Filing Date:
September 15, 1997
Export Citation:
Assignee:
Blue Ningaus Hydromatic Gesell Shaft Mitt Beschlenktel Haftung
International Classes:
F04B49/08; F04B49/00
Domestic Patent References:
| JP60147588A |
Foreign References:
| US4613286 |
Attorney, Agent or Firm:
Yoshihiro Shimizu
Shinichi Abe
Yuji Tsujida
Tashiro Sakuo
Etsuo Machida
Launch Yoji
Shinichi Abe
Yuji Tsujida
Tashiro Sakuo
Etsuo Machida
Launch Yoji